JP6154525B1 - Order management system, order management apparatus, and program - Google Patents

Abstract

An object of the present invention is to reduce the load on a server by limiting the number of inquiries from a facility that accepts a waiting order to a management server. An order management system for managing a waiting order of users in a facility, the order management terminal for receiving a waiting order registration operation in a facility, and a reference and update operation of registered status waiting status information; An order management server that manages the status information waiting for the order registered via the order management terminal for each facility, and the order management terminal displays an operation screen for making an inquiry to the order management server in one session. The order management server includes an access key generation unit that generates an access key used when the order management terminal makes an inquiry to the order management server, and the access key is assigned to each operation screen. The number of access keys that can be used simultaneously for each facility is limited to a certain number. [Selection] Figure 3

Description

  The present invention relates to an order management system, an order management apparatus, and a program.

  2. Description of the Related Art Conventionally, various order management systems are employed in restaurants, stores, hospitals, banks, government offices, and the like in order to arrange the order of customers waiting for their services.

  For example, Patent Document 1 describes a reservation management system that simultaneously provides a reservation management service for a plurality of facilities that can wait for a turn, and a user can make a reservation for a turn from a Web, a telephone, or a storefront terminal. It is stated that you can apply.

JP 2005-50002 A

  In the conventional order management system, access from each facility to the management server is performed using an operation screen displayed on a terminal such as a personal computer. However, if a plurality of operation screens are launched on one computer, an inquiry to the management server is generated from each screen, and the load on the server is increased.

  The present invention has been made in view of the circumstances described above, and an object of the present invention is to limit the number of inquiries from the facility side that accepts the waiting order to the management server and reduce the load on the server.

  An order management system according to an embodiment of the present invention is an order management system that manages a waiting order of users in a facility, and refers to a registration operation for waiting in the facility in the facility and status information in the waiting order registered. And an order management terminal that accepts the update operation, and an order management server that manages the status information waiting for the order registered via the order management terminal for each facility, and the order management terminal is connected to the order management server. It is possible to open a plurality of operation screens for making an inquiry in one session, and the order management server generates an access key used when the order management terminal makes an inquiry to the order management server. An access key that is assigned to each operation screen and can be used simultaneously for each facility. The number is one that is limited to a certain number.

In addition, when making an inquiry to the order management server from the first operation screen, the order management terminal makes an inquiry with the key information empty for the first time, and the order management server has an empty key information state. In response to the inquiry, a new first access key is generated, the first access key is linked and held with the facility account, and transmitted to the order management terminal. When the terminal receives the first access key, when making an inquiry to the order management server from the first operation screen, the terminal makes an inquiry using the first access key,
When making an inquiry to the order management server from a second operation screen different from the first operation screen, the order management terminal makes an inquiry with the key information set to an empty state, and the order management server When receiving an inquiry from the second operation screen with the key information empty, a second access key is newly generated, and the access key held in association with the account of the facility is The second access key may be overwritten, and the second access key may be transmitted to the order management terminal to invalidate the first access key.

  Further, there are a plurality of order management terminals that can make an inquiry to the order management server from one facility, and the order management server determines the number of inquiry sources that can make an inquiry to the order management server from one facility at the same time, a terminal-specific identifier, You may make it restrict | limit with the sum total of the identifier of a session, and the number of the effective access keys allocated to the operation screen opened in each session.

  ADVANTAGE OF THE INVENTION According to this invention, the number of the inquiry origins to the management server from the facility side which receives turn waiting can be restrict | limited, and the load of a server can be reduced.

The figure which shows schematic structure of the order management system 1000 which concerns on embodiment of this invention. The block diagram which shows the main structures of the order management terminal 200. FIG. The sequence diagram which shows the procedure at the time of accessing the order management server 100 from the order management terminal 200 of each plant | facility in the order management system 1000 which concerns on embodiment of this invention. The flowchart of the registration reception process of waiting for the order in the order management system 1000 which concerns on embodiment of this invention. The figure which illustrated the status management screen. The sequence diagram in the case of performing order management using the three order management terminals 200A-200C in the order management system 1000 according to the embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same element and the overlapping description is abbreviate | omitted.

  In the present embodiment, the case of managing waiting for customers in a restaurant will be described as an example. However, the present invention is for waiting for waiting for facility users such as hospitals, banks, government offices, amusement facilities, shopping malls, department stores, and movie theaters. It is applicable to any facility that manages

  FIG. 1 is a diagram showing a schematic configuration of an order management system 1000 according to the present embodiment. As shown in FIG. 1, the order management system 1000 includes an order management server 100 installed in a management center, an order management terminal 200 installed in each facility, and a user terminal 300 owned by the facility user. Yes. The order management server 100 is connected to the order management terminal 200 and the user terminal 300 via the communication network N. In the example of FIG. 1, only one each of the order management terminal 200 and the user terminal 300 is illustrated, but in reality, the order management terminal 200 installed in a plurality of facilities is managed by the order management server 100. Has been. Furthermore, a plurality of order management terminals 200 may be installed in one facility. In addition, many user terminals 300 can access the order management server 100.

  The order management server 100 manages the waiting for the order registered via the order management terminal 200 or the user terminal 300 for each facility. The order management server 100 is configured by a general-purpose computer, and a server function is realized by operating a predetermined server program on the computer. The number of computers constituting the order management server 100 is not necessarily one, and may be composed of a plurality of computers distributed on the communication network N.

  The order management server 100 includes a management database 110 for managing the order management terminal 200 for each facility, and a processor (access key generation unit) 120. The management database 110 includes a client management table TA1, a status management table TA2, and an access key management table TA3.

  In the client management table TA1, a unique ID and a passcode (account) assigned to the order management terminal 200 are registered for each facility. For example, “ID: A1...” And “pass code: AA2. These pieces of information are set by, for example, an administrator (for example, a store owner) who performs management waiting in each facility at the time of system introduction. When a plurality of order management terminals 200 are used in one facility, the same ID and passcode may be used. For example, a plurality of IDs and passwords may be used properly according to predetermined conditions. .

  In the status management table TA2, a waiting list for each facility is registered. The order waiting list includes a list of persons who are waiting for an order (order waiting group) and information (status information) indicating a waiting state of each order waiting group. For example, for restaurant A, one record in the waiting list includes information such as reception number “1”, reception time “13:03”, number of people “3”, and the like.

  The status includes “waiting” which is the state before the turn arrives, “calling” which is informed that the turn has arrived, “guidance complete” which is the state where the turn has come to the seat, Furthermore, “cancelled” or the like in which the waiting for the order is canceled is included. What items are set as the status can be appropriately set and changed by the manager of each facility.

  Information included in the waiting list can be set and changed as appropriate by the manager of each facility. The contents of the waiting list are updated based on new registration information in the waiting list transmitted from the order management terminal 200 or the user terminal 300 or status update information (details will be described later).

  In the access key management table TA3, information on access keys used when accessing the order management server 100 from an operation screen opened on the order management terminal 200 (personal computer) of each facility is registered. When accessing the order management server 100 from the operation screen opened on the order management terminal 200, the key information is made empty only for the first time. The order management server 100 issues an access key with a random number when it is accessed with the key information empty, and registers it in the access key management table TA3 in association with the facility account. The issued access key is transmitted to the order management terminal 200, and then the access key is used when accessing the order management server 100 from the operation screen. When another operation screen is opened on the order management terminal 200 to access the order management server 100, the access key is again emptied for access. Upon receiving an access from another operation screen (that is, an access with an empty key), the order management server 100 issues a new access key, transmits it to the order management terminal 200, and information on the access key management table TA3. Is overwritten with a new access key. As a result, the access key assigned to the first operation screen becomes invalid. The updated access key can be used only for access from the operation screen opened later. The operation screen here is, for example, a web page that can be opened multiple times in the same session in a web browser. Each web page (operation screen) can be switched using a tab. The access key may be registered in association with an account as described above and managed in units of accounts. For example, the access key is registered in association with the terminal ID of the order management terminal 200 and managed in units of terminal IDs. Alternatively, it may be registered in association with a session ID and managed in units of session IDs.

  The processor 120 includes an arithmetic and logic unit (such as a CPU) that processes arithmetic operations, logic operations, bit operations, and the like and various registers, and manages the order by executing various programs stored in storage means such as a ROM. Each part of the server 100 is centrally controlled. In addition, the processor 120 also executes a computer program (order management application) for managing the wait for turn in cooperation with the order management terminal 200.

  The communication network N includes a communication network in which information can be transmitted and received between the order management server 100, the order management terminal 200, and the user terminal 300. The communication network N is, for example, the Internet, a LAN, a dedicated line, a telephone line, a corporate network, a mobile communication network, Bluetooth (registered trademark), WiFi (Wireless Fidelity), other communication lines, or a combination thereof. It does not matter whether it is wired or wireless.

  The order management terminal 200 is installed in each facility that provides a service, and accepts confirmation of a waiting state and an update operation by an employee (a store clerk) of the facility, in addition to receiving registration for waiting for a turn by a user. In the restaurant A, for example, it is installed near the entrance of the store.

  The order management terminal 200 can exchange data with the order management server 100 via the communication network N such as a tablet terminal, a personal computer (PC), a notebook PC, a smartphone, a mobile phone, and a personal digital assistant (PDA). Any terminal device can be used.

  FIG. 2 is a block diagram showing the main configuration of the order management terminal 200. The order management terminal 200 includes a processor 210, an input device 215, a display device 216, a communication interface 220, and a storage resource 230. The order management terminal 200 accepts inputs such as acceptance to the waiting list and dismissal when the user directly operates the input device 215 such as a touch panel. Here, the user is assumed to be a visitor, an employee, or the like. For example, the store visitor performs an input for newly registering the waiting list in the waiting list, and the employee or the like performs an input for updating the status of the information registered in the waiting list. Here, facility managers and salesclerks are collectively referred to as employees.

  The processor 210 includes an arithmetic logic unit (CPU or the like) that processes arithmetic operations, logic operations, bit operations, and the like and various registers, and executes various programs stored in the storage resource 230 to execute the order management terminal 200. Central control of each part. The various registers are, for example, a program counter, a data register, an instruction register, a general-purpose register, and the like.

  The input device 215 includes various operation buttons and a touch panel 215a for accepting an input such as acceptance to the waiting list or disappearance from the waiting list.

  The display device 216 is a device for displaying a reception screen and a standby screen including a waiting list, a reception button, and the like, and is configured by a liquid crystal display, for example.

  The communication interface 220 is a hardware module for connecting to the communication network N and communicating with other terminals on the communication network N. The communication interface 220 is a modulation / demodulation device such as an ISDN modem, an ADSL modem, a cable modem, an optical modem, or a soft modem.

  The storage resource 230 is, for example, a logical device provided by a storage area of a physical device. The physical device is a computer-readable recording medium such as a disk drive or a semiconductor memory (ROM, RAM, etc.). The storage resource 230 may be constructed by mapping a plurality of physical devices to one logical device, or may be constructed by mapping one physical device to a plurality of logical devices.

  The storage resource 230 stores an operating system program, a driver program, various data, and the like. Examples of the driver program include a communication interface driver program for controlling the communication interface 220. In addition to these various programs and various data, the storage resource 230 stores a computer program (order management application) AP1 for managing the waiting in cooperation with the order management server 100 by being executed by the processor 210. Has been.

  The user terminal 300 is a terminal such as a smartphone, a mobile phone, a tablet terminal, or a wearable device owned by a user of the service. The user terminal 300 includes a processor 310, an input device 320 such as various operation buttons and a touch panel, a display device 330 such as a liquid crystal display, a communication interface 340 for connecting to the communication network N, a disk drive or a semiconductor memory (ROM, RAM, etc.). The storage resource 350 is provided. In addition to these various programs and various data, the storage resource 350 stores a computer program (order management application) for managing the waiting in cooperation with the order management server 100 by being executed by the processor. The user can register the waiting for each facility through a web browser or other application installed in the user terminal 300. Note that the hardware configuration of each element of the user terminal 300 is the same as the corresponding element of the order management terminal 200, and thus detailed description thereof is omitted.

Next, the operation of the order management system 1000 in this embodiment will be described.
As a user of the order management system 1000, a facility user, an employee, or the like is assumed. The user can register the waiting order by operating the order management terminal 200 installed in the facility. In addition, the user terminal 300 that is owned can be used to connect to a reservation website and perform waiting registration.

(Access control from the order management terminal 200 to the order management server 100)
FIG. 3 is a sequence diagram illustrating a procedure for accessing the order management server 100 from the order management terminal 200 of each facility. Here, a case where a personal computer (PC) is used as the order management terminal 200 will be described as an example.

  First, a facility employee or the like operates the order management terminal 200 to open the web page (operation screen) 1, and a unique ID and passcode (account) assigned to each facility (here "restaurant A"). And login to the order management server 100 (step S11).

  When the login operation is detected, the order management terminal 200 transmits the input account, session ID, and access key information (here, key information is sent empty) to the order management server 100 (step S12). ).

  The order management server 100 authenticates the account received from the order management terminal 200 and performs login processing (step S13).

  Next, the order management server 100 generates a new access key and transmits it to the order management terminal 200 (step S14). A new access key is created, for example, by issuing a random number. The order management server 100 registers the created access key in the access key management table TA3 in association with the facility account. The access key may be registered in units of accounts, but may be managed in units of terminal IDs associated with the terminal ID of the order management terminal 200, or managed in units of session IDs in association with session IDs. May be.

  The order management terminal 200 receives the generated access key (step S15). When accessing the order management server 100 from the next time on the web page 1, the received access key (access key assigned to the web page 1) is used (step S16). Specifically, when accessing the order management server 100, the assigned access key is transmitted together with information about the facility account, the session ID, and the inquiry content to the order management server 100.

  Next, when an employee or the like opens another web page 2 on the order management terminal 200 and performs an operation for generating access to the order management server 100 (step S17), the order management terminal 200 displays the order management server 100. The facility account, session ID, and empty access key information are transmitted (step S18).

  Upon receiving an inquiry when the access key is empty, the order management server 100 newly generates an access key and transmits it to the order management terminal 200 (step S19). Further, the order management server 100 updates the access key information registered in the access key management table TA3 in association with the facility account to the newly created access key (step S20).

  When accessing the order management server 100 from the next time on the web page 2, the received updated access key is used (step S21).

  Note that after switching from web page 1 to web page 2 using a tab, the access key before update assigned to web page 1 becomes invalid, so access to order management server 100 from web page 1 is not possible. Disappear. For this reason, when the user tries to access the order management server 100 from the web page 1 again, the user is prompted to use the web page 2. Specifically, for example, a warning message instructing to use the web page 2 is displayed on the screen of the order management terminal 200.

  Thus, a web page that can access the order management server 100 simultaneously from the order management terminal 200 of one facility by updating the access key each time an access from a newly opened web page (operation screen) is received. Can be limited to one. From the order management terminal 200, an inquiry is automatically made to the order management server 100 periodically (for example, every 10 seconds) in order to obtain the latest information. Therefore, when a plurality of web pages are opened, if inquiries are made from all the web pages, the load on the communication network N and the order management server 100 becomes very high. However, according to the present embodiment, the web page that makes an inquiry to the order management server 100 is limited to the web page to which the access key is given at that time, so that the load on the order management server 100 is prevented from increasing. can do.

(Register for waiting in the waiting list)
Next, the flow of the registration reception process waiting for the turn in the turn management system 1000 will be briefly described with reference to the flowchart of FIG. Registration for waiting for a turn is performed by a user who visits the restaurant A or an employee of the restaurant A operating the turn management terminal 200.

  The order management terminal 200 receives information included in the order waiting list registered in the status management table TA2 from the order management server 100 via the communication interface 220 (step S31).

  Next, the order management terminal 200 causes the display device 216 to display an acceptance screen for accepting an order waiting (step S32). On the reception screen, for example, a list in which the information of the waiting list (the reception number of the person waiting for the turn and the current status information) is arranged in time series in the order of reception is displayed. In addition, the number of waiting groups currently waiting for the order, a rough indication of the waiting time, and the like are also displayed.

  When the user performs a predetermined operation input on the displayed reception screen and the input of information necessary for reception of the waiting order (number of people, seat preference, etc.) is completed (step S33: YES), the order management terminal 200. Displays a reception completion screen (step S34). On the reception completion screen, a reception number (waiting number), a waiting time at the present time, and the like are displayed. In addition, a message prompting to receive a turn ticket is displayed, and the user can receive a turn ticket printed from a printer (not shown) connected to the turn management terminal 200.

  For example, a two-dimensional code is printed on the turn ticket. The user reads the two-dimensional code printed on the turn ticket using his / her user terminal 300. By reading the two-dimensional code, the display device 330 of the user terminal 300 displays the current waiting state (the current number of waiting groups, waiting time, etc.). Alternatively, a reminder mail for calling may arrive when the turn of the person approaches. For example, the user may be able to receive a remind mail by inputting a mail address according to the guidance displayed when the two-dimensional code is read.

  The confirmed new registration information is transmitted from the order management terminal 200 to the order management server 100 via the communication network N (step S35). When the order management server 100 receives new registration information from a certain facility (here, restaurant A), the order management server 100 performs a process of adding a new set of order waits to the order wait list based on the received new registration information. The management table TA2 is updated (step S36).

  In the above example, the user performs waiting registration using the order management terminal 200. However, the user can also perform waiting registration via the website using the user terminal 300 owned by the user. . In this case, the user first operates the user terminal 300 to access the website of the order management system 1000, and displays the website reception screen for the store (restaurant A) that performs registration for waiting in the display device 330. Display. Thereafter, the same procedure as in the case of registering using the order management terminal 200 can be performed.

(Update waiting list)
The contents of each record in the waiting list of each facility is updated when the facility employees perform operations such as “cancel”, “change”, “call”, “guidance” using the order management terminal 200 Is done. “Cancel” means canceling the waiting order, and “change” means changing the contents of the waiting order once input. “Call” means that the group that has come in the order is called verbally or informed by telephone or e-mail, etc. It means a state.

  The employee or the like operates the order management terminal 200 and causes the display device 216 to display a status management screen as illustrated in FIG. This status management screen is composed of, for example, one web page. As shown in FIG. 5, the status management screen displays the status information of the waiting groups registered in the waiting list in the order in which they are received. Specifically, “reception number”, “number of people”, “status”, etc. of the waiting group are displayed.

  When an employee or the like identifies an object to be updated in the order waiting status from the order waiting list displayed on the status management screen, and swipes the row of the order waiting group (for example, reception number “1”) (step S22). Then, an operation button for performing any one of “calling”, “guidance”, “cancellation”, and “change” for the designated waiting group is displayed.

  The employee or the like performs a status update operation by tapping a desired operation button (for example, “guidance”). When such an operation is performed, status update information indicating a status update instruction is uploaded from the sequence management terminal 200 to the sequence management server 100 via the communication network N. The status update information includes information for specifying a record to be updated (for example, reception number “1”) and update operation content (for example, “guidance”). In addition to the status update information, the account of the restaurant A, the session ID, and the access key information assigned to the currently operated web page are transmitted to the order management server 100. Note that when the access to the order management server 100 from the currently operated web page is the first time, the access key is transmitted in an empty state. If the previously assigned access key is invalid (other web pages are valid), a warning message or the like prompting the user to use another page is displayed on the screen.

  The order management server 100 updates the waiting list of the facility based on the received status update information. For example, when the “Guidance” operation is performed on the reception number “1”, the status of the waiting group in the reception number “1” is updated to “Guided”. When the access key received from the order management terminal 200 is empty, a new access key is issued.

(Synchronization among multiple order management terminals in the facility)
In the present embodiment, it is assumed that one order management terminal 200 is used in one facility, but as described above, a plurality of order management terminals 200 may be used in one facility. When a plurality of order management terminals are used in one facility, data is shared among the order management terminals. FIG. 6 is a sequence diagram when the order management is performed using the three order management terminals 200A to 200C. For example, when the order management terminal 200A is operated in a certain facility (here restaurant A) (C1), the operation content (here, assuming status update information) is uploaded to the order management server 100 (C2). . The order management server 100 updates the status information of the facilities registered in the status management table TA2 based on the received status update information (C3). Terminals other than the order management terminal 200A used in the facility, that is, the order management terminals 200B and 200C make an inquiry about the status information registered in the status management table TA2 using a unique account for each facility as a key ( C4). The order management server 100 transmits the latest status information updated to the order management terminals 200B and 200C (C5), and ends the process. As a result, the updated status information is shared by all the order management terminals 200A to 200C used in the facility.

  As a result, the latest information is always reflected in the respective order management terminals 200 in a synchronized state. As a result, even when a plurality of order management terminals 200 are used in one facility, the update information waiting for the order is updated. Optimal order waiting management can be performed without causing problems such as not being reflected in some of the order management terminals 200.

  Note that, as described above, the number of web pages that can be simultaneously accessed by the single order management terminal 200 is limited to one, so even if a plurality of web pages are opened on the single order management terminal 200. The above-mentioned status information for data sharing can be inquired only for one web page to which an access key is assigned.

  In the present embodiment, the number of access keys that can be used at one facility at a time is limited to one, but the number of restrictions may be plural (for example, two). In this case, the order management server 100 registers up to two access keys in association with the facility account, and receives an access from a new web page (access with an empty access key). May invalidate any of the registered access keys (for example, the oldest one) and register a newly generated access key.

(Restriction on the number of accesses to the order management server 100 for each facility)
As described above, one facility can use a plurality of order management terminals 200. However, the number of terminals that can simultaneously access the order management server 100 may be limited for each facility. The order management terminal 200 mainly includes a tablet terminal and a personal computer. For example, each terminal can be identified by a terminal ID (UDID) for a tablet terminal and by a session ID for a personal computer. Therefore, the order management server 100 can count the number of terminals simultaneously accessing from one facility using the terminal ID and the session ID. Furthermore, according to the present embodiment, the web pages that can be accessed from one personal computer to the order management server 100 can be limited by the number of valid access keys. Therefore, the order management server 100 may limit the total number of accesses from one facility using the terminal ID, the session ID, and the access key.

  As described above, according to the present embodiment, when accessing the order management server 100 from the operation screen (web page) opened on the order management terminal 200, the access key assigned to each operation screen is used. I did it. Furthermore, since the number of access keys that can be used at one time is limited for each facility, the number of inquiry sources from each facility to the order management server 100 can be limited, and the load on the server can be reduced.

  In addition, the access key assignment is generated every time there is an access from the new operation screen of the order management terminal 200 and is replaced with the access key assigned in the past. Therefore, the actual access from the order management terminal 200 is performed. An access key can be efficiently allocated according to the situation.

  In addition, since the order management server 100 limits the number of inquiry sources that can make an inquiry to the order management server 100 from one facility at the same time by the total number of terminal IDs, session IDs, and valid access keys. Regardless of the type, the number of inquiry sources can be managed accurately.

  The present invention is not limited to the above-described embodiment, and can be implemented in various other forms without departing from the gist of the present invention. For this reason, the said embodiment is only a mere illustration in all points, and is not interpreted limitedly. For example, the above-described processing steps can be arbitrarily changed in order as long as the processing contents do not contradict each other, or can be executed in parallel.

1000 ... Order management system 100 ... Order management server 110 ... Management database 120 ... Processor 200 ... Order management terminal 210 ... Processor 215 ... Input device 215a ... Touch panel 216 ... Display device 220 ... Communication interface 230 ... Storage resource 300 ... User terminal 310 ... Processor 320 ... Input device 330 ... Display device 340 ... Communication interface 350 ... Storage resource TA1 ... Client management table TA2 ... Status management table TA3 ... Access key management table N ... Communication network AP1 ... Order management application

Claims (3)

An order management system for managing the waiting order of users in a facility,
An order management terminal for accepting a registration operation waiting for a turn in the facility, and a reference and update operation of status information registered for the waiting order;
An order management server for managing the status information waiting for the order registered via the order management terminal for each facility, and
The order management terminal can open a plurality of operation screens for making an inquiry to the order management server in one session,
The order management server
An access key generating unit that generates an access key used when the order management terminal makes an inquiry to the order management server;
The access key is assigned to each operation screen, and the number of access keys that can be used simultaneously for each facility is limited to a certain number. When making an inquiry to the order management server from the first operation screen, the order management terminal makes an inquiry with the key information empty for the first time,
The order management server newly generates a first access key when receiving an inquiry when the key information is empty, and holds the first access key in association with the facility account. , To the order management terminal,
Upon receiving the first access key, the order management terminal makes an inquiry using the first access key when making an inquiry to the order management server from the first operation screen.
When making an inquiry to the order management server from a second operation screen different from the first operation screen, the order management terminal makes an inquiry with the key information empty,
When the order management server receives an inquiry from the second operation screen when the key information is empty, the order management server newly generates a second access key, which is stored in association with the facility account. 2. The order management system according to claim 1, wherein an existing access key is overwritten with the second access key, and the second access key is transmitted to the order management terminal to invalidate the first access key. . There are multiple order management terminals that can make an inquiry to the order management server from one facility,
The order management server
The number of inquiry sources that can be inquired to the order management server from one facility at the same time is the sum of the unique identifier of the terminal, the identifier of the session, and the number of valid access keys assigned to the operation screens opened in each session. The order management system according to claim 1, wherein the order management system is limited.